package 常用的集合类;

import java.util.Vector;

public class VectorDemo {
     public static void main(String[] args) {
		Vector v=new Vector(5);
		v.addElement(123 );
		v.addElement(Integer.valueOf(123));//装箱
		System.out.println(v);
		
		StringBuilder sb=new StringBuilder("ABC");
		v.addElement(v);
		System.out.println(v);
		sb.append("SeeMyGo");
		System.out.println(v);
	}
}
